{"uid":"cap_f5csl7vTR0piz7URtK3hT","slug":"adh-us-mega-cap-stock-signals-0d9e62cb","name":"ADH US Mega-Cap Stock Signals","description":"US Mega-Cap Signals — Momentum, volatility, z-score, and percentile signals for 10 US mega-caps like Apple, Microsoft, Nvidia, Tesla, with 30-day trends.","url":"https://agentdatum.com/api/v1/d/sig-us-mega-cap","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"raw":{"method":"x402 signals: log-return momentum / volatility / z-score / percentile rank over time-series library","product":"美股巨头信号","signals":[{"mom_4":0.032139,"ret_1":0.00294,"points":257,"series":"stock-quote__AAPL","status":"ok","vol_20":0.02298,"history":[{"ts":1782480600,"value":283.779999},{"ts":1782480600,"value":283.779999}],"zscore_10":-0.6696,"zscore_30":-0.1112,"last_value":313.33,"pctrank_10":50,"pctrank_30":43.3},{"mom_4":0.032139,"ret_1":0.00294,"points":257,"series":"stock-quote__AAPL","status":"ok","vol_20":0.02298,"history":[{"ts":1782480600,"value":283.779999},{"ts":1782480600,"value":283.779999}],"zscore_10":-0.6696,"zscore_30":-0.1112,"last_value":313.33,"pctrank_10":50,"pctrank_30":43.3}],"generated_at":"2026-08-14T00:22:02Z"},"source":"datum-signals","data_type":"信号指标","collected_at":"2026-08-14T00:22:02Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rZXOzn6daVa1G-dBUyGRZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns momentum, volatility, z-score, and percentile-rank signals for US mega-cap equities (e.g. AAPL) derived from time-series data across 239 sources.","exampleAgentPrompt":"Pull the latest momentum, volatility, and z-score signals for US mega-cap stocks like AAPL — I want to see the percentile ranks and price history to decide if they're extended or due for a pullback.","exampleUseCases":[{"title":"Momentum screening for large-cap stocks","prompt":"Give me the current momentum and percentile rank signals for US mega-cap equities — I want to know which ones are showing strong 4-period momentum and whether they're in the top or bottom half of their 30-day range."},{"title":"Volatility regime check before earnings","prompt":"What's the current 20-day realized volatility and z-score for mega-cap US stocks right now? I need to know if volatility is elevated versus historical norms before I size my positions."},{"title":"Automated signal injection for AI trading agent","prompt":"Fetch the latest ADH mega-cap signals including log returns, z-scores, and percentile ranks so my trading agent can assess whether AAPL and peers are in a mean-reversion or trend-continuation regime."}],"resultDescription":"Returns a JSON object containing per-ticker signal objects for US mega-cap equities. Each signal includes: 1-day log return (ret_1), 4-period momentum (mom_4), 20-day volatility (vol_20), 10- and 30-day z-scores, 10- and 30-day percentile ranks, last price, data point count, status, and a timestamped price history array. Also includes metadata: product label, data source, data type, and generation timestamp.","failureModes":["Payment not received — x402 payment required before data is served","Stale data — generated_at timestamp may lag real-time by minutes or hours","Empty or partial signals array if upstream data sources are unavailable","Rate limiting if payment is not settled per-call via x402","Schema mismatch if response format changes between API versions"],"whenToPreferThis":"Choose this endpoint when you need pre-computed, statistically derived signals (momentum, volatility, z-score, percentile rank) for US mega-cap equities ready to inject into an AI context — especially when you want entity-resolved, time-synchronized intelligence rather than raw price feeds. Prefer this over raw market data APIs when you need derived quantitative metrics (z-scores, percentile ranks) already computed across a 239-source data library, and when you want agent-native x402 micropayment settlement.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:32:06.074Z","isFirstParty":false}